Unveiling the Marvels of 31CrMoV9/1.8519 Alloy Steel: A Comprehensive Exploration
Introduction
In the vast landscape of metallurgy, certain alloys stand out as shining examples of innovation and engineering excellence. One such marvel is 31CrMoV9/1.8519 Alloy Steel, renowned for its exceptional strength, durability, and versatility. Join us as we embark on a journey to uncover the intricacies and advantages of this remarkable alloy, delving into its composition, properties, applications, suppliers, pricing, and expert insights.
Overview of 31CrMoV9/1.8519 Alloy Steel
31CrMoV9/1.8519 Alloy Steel belongs to the family of chromium-molybdenum-vanadium steels, characterized by their high strength, toughness, and wear resistance.
Chemical Composition
| Element | Percentage |
|---|---|
| Chromium (Cr) | 2.00-2.50% |
| Molybdenum (Mo) | 0.90-1.20% |
| Vanadium (V) | 0.10-0.20% |
| Carbon (C) | 0.28-0.34% |
| Silicon (Si) | 0.10-0.40% |
| Manganese (Mn) | 0.40-0.70% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
| Iron (Fe) | Balance |
Mechanical Properties
- Tensile Strength: 900-1100 MPa
- Yield Strength: 750-900 MPa
- Elongation: ≥ 14%
- Impact Toughness (Charpy V-notch): ≥ 27 J
Standards
- EN 10083-3: Technical delivery conditions for alloy steels
- DIN 17200: Heat-treatable steels – Technical delivery conditions for steels for quenching and tempering
Exploring the Features and Advantages
31CrMoV9/1.8519 Alloy Steel boasts a plethora of features and advantages that make it a preferred choice in various applications:
Features
- High strength with moderate ductility and toughness
- Excellent fatigue and fracture resistance
- Very good machinability and polishability
- Good weldability and formability
- High thermal and electrical conductivity
- Available in a range of powder sizes and shapes
Advantages
- Ideal for aerospace components and high-performance applications
- Offers strength combined with fabrication capabilities
- Retains formability and weldability
- Imparts substantial strengthening through precipitation hardening
- Ensures an optimal combination of properties for critical components
Comparison Between 31CrMoV9/1.8519 Alloy Steel and Competing Alloys
Let’s compare the advantages and disadvantages of 31CrMoV9/1.8519 Alloy Steel with a competing alloy, Alloy X (e.g., Inconel 718):
| Parameter | 31CrMoV9/1.8519 Alloy Steel | Alloy X (Inconel 718) |
|---|---|---|
| Alloy Type | Chromium-molybdenum-vanadium steel | Nickel-based superalloy |
| Chromium (Cr) Content | 2.00-2.50% | 15-20% |
| Molybdenum (Mo) Content | 0.90-1.20% | 2-3% |
| Vanadium (V) Content | 0.10-0.20% | Not present |
| Carbon (C) Content | 0.28-0.34% | 0.05-0.15% |
| Strength | High | Very high |
| Toughness | Excellent | Moderate |
| Machinability | Very good | Poor |
| Weldability | Good | Poor |
| Corrosion Resistance | Moderate | Excellent |
| Cost | Moderate | Higher |
Applications and Uses
From aerospace to automotive, 31CrMoV9/1.8519 Alloy Steel finds widespread application across diverse industries:
| Industry | Applications |
|---|---|
| Aerospace | Structural components, landing gear, engine parts |
| Automotive | Gear shafts, crankshafts, steering components |
| Machinery | Hydraulic components, tooling, machine parts |
Navigating Suppliers and Pricing
Sourcing 31CrMoV9/1.8519 Alloy Steel requires careful consideration of reliable suppliers offering quality products at competitive prices:
| Supplier | Price Range (per unit) | Description/Notes |
|---|---|---|
| Sandvik Osprey | $10 – $20 | Renowned for high-quality alloy steel powders suitable for aerospace and automotive applications. |
| Valimet Inc. | $12 – $25 | Specializes in providing customized alloy steel powders with exceptional consistency and performance. |
| TLS Technik | $15 – $30 | Offers a wide range of alloy steel powders tailored to meet the stringent requirements of various industries. |
FAQs about 31CrMoV9/1.8519 Alloy Steel
Q: How is 31CrMoV9/1.8519 Alloy Steel produced?
A: This alloy steel is typically produced through processes such as gas atomization, water atomization, mechanical alloying, and electrolysis, ensuring precise control over particle characteristics.
Q: What are the main advantages of using 31CrMoV9/1.8519 Alloy Steel?
A: 31CrMoV9/1.8519 Alloy Steel offers high strength, excellent fatigue resistance, good machinability, and weldability, making it ideal for demanding applications.
Q: What are the common applications of 31CrMoV9/1.8519 Alloy Steel?
A: This alloy steel finds applications in aerospace components, automotive parts, machinery components, and various high-performance applications requiring strength and fabrication capabilities.
Q: Where can I buy 31CrMoV9/1.8519 Alloy Steel?
A: You can source 31CrMoV9/1.8519 Alloy Steel from reputable suppliers such as Sandvik Osprey, Valimet Inc., and TLS Technik, among others.
Q: What specifications does 31CrMoV9/1.8519 Alloy Steel conform to?
A: This alloy steel conforms to standards such as EN 10083-3, DIN 17200, and other industry-specific specifications, ensuring compliance with stringent quality requirements.
